def test_concat_with_none(sample_df):
df1 = sample_df[["id", "full_name", "email"]]
df2 = sample_df[["phone_number", "age", "signup_date", "is_registered"]]
error = "'NoneType' object has no attribute 'ww'"
with pytest.raises(AttributeError, match=error):
concat_columns([df1, df2, None])
def test_concat_cols_duplicate_columns(sample_df):
sample_df.ww.init()
df1 = sample_df.ww[["id", "full_name", "age"]]
df2 = sample_df.ww[["full_name", "email", "signup_date"]]
error = (
"Duplicate column 'full_name' has been found in more than one input object. "
"Please remove duplicate columns from all but one table.")
with pytest.raises(ValueError, match=error):
concat_columns([df1, df2])
def test_concat_cols_all_series(sample_df):
age_series = ww.init_series(sample_df["age"], logical_type="Double")
combined_df_1 = concat_columns(
[sample_df["id"], age_series, sample_df["is_registered"]])
combined_df_2 = concat_columns(
[age_series, sample_df["id"], sample_df["is_registered"]])
assert isinstance(combined_df_1.ww.schema, ww.table_schema.TableSchema)
assert list(combined_df_1.columns) == ["id", "age", "is_registered"]
assert list(combined_df_2.columns) == ["age", "id", "is_registered"]
assert isinstance(combined_df_1.ww.logical_types["age"], Double)
def test_concat_cols_mismatched_index_adds_multiple_nans(sample_df_pandas):
# Only pandas checks for index uniqueness
sample_df_pandas.ww.init(index="id",
logical_types={"id": "IntegerNullable"})
df1 = sample_df_pandas.ww.loc[[0, 1], ["id", "full_name"]]
df2 = sample_df_pandas.ww.loc[[2, 3], ["signup_date", "email"]]
error = "Index column must be unique"
with pytest.raises(IndexError, match=error):
concat_columns([df1, df2])
def test_concat_table_order(sample_df):
df1 = sample_df[["signup_date"]]
df1.ww.init()
df2 = sample_df[["id", "age"]]
df2.ww.init(index="id")
combined_df1 = concat_columns([df1.ww.copy(), df2.ww.copy()])
combined_df2 = concat_columns([df2.ww.copy(), df1.ww.copy()])
assert set(combined_df1.columns) == set(combined_df2.columns)
assert list(combined_df1.columns) == ["signup_date", "id", "age"]
assert list(combined_df2.columns) == ["id", "age", "signup_date"]
def test_concat_table_names(sample_df):
df1 = sample_df[["id", "signup_date"]]
df1.ww.init(name=0)
df2 = sample_df[["full_name", "age"]]
df2.ww.init(name="1")
df3 = sample_df[["phone_number", "is_registered"]]
df3.ww.init()
combined_df = concat_columns([df1, df2, df3])
assert combined_df.ww.name == "0_1"
combined_df = concat_columns([df3, df2, df1])
assert combined_df.ww.name == "1_0"
def test_concat_cols_validate_schema(mock_validate_accessor_params, sample_df):
df1 = sample_df[["id", "full_name", "email"]]
df1.ww.init(validate=False)
df2 = sample_df[["phone_number", "age", "signup_date", "is_registered"]]
df2.ww.init(validate=False)
assert not mock_validate_accessor_params.called
concat_columns([df1, df2], validate_schema=False)
assert not mock_validate_accessor_params.called
concat_columns([df1, df2], validate_schema=True)
assert mock_validate_accessor_params.called
def test_concat_cols_with_conflicting_ww_indexes(sample_df):
df1 = sample_df[[
"id",
"full_name",
"email",
"phone_number",
"age",
"signup_date",
"is_registered",
]]
df1.ww.init(index="id")
df2 = sample_df[[
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
]]
df2.ww.init(index="double")
error = ("Cannot set the Woodwork index of multiple input objects. "
"Please remove the index columns from all but one table.")
with pytest.raises(IndexError, match=error):
concat_columns([df1, df2])
df1 = sample_df[[
"id", "full_name", "email", "phone_number", "age", "is_registered"
]]
df1.ww.init(time_index="id")
df2 = sample_df[[
"signup_date",
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
]]
df2.ww.init(time_index="signup_date")
error = ("Cannot set the Woodwork time index of multiple input objects. "
"Please remove the time index columns from all but one table.")
with pytest.raises(IndexError, match=error):
concat_columns([df1, df2])
def test_concat_cols_row_order(sample_df):
sample_df.ww.init(index="id")
pd.testing.assert_index_equal(to_pandas(sample_df.index),
pd.Index([0, 1, 2, 3]))
df1 = sample_df.ww.loc[:, ["id", "full_name"]]
df2 = sample_df.ww.loc[[2, 3, 0, 1], ["email", "phone_number"]]
df3 = sample_df.ww.loc[[3, 1, 0, 2], [
"age",
"signup_date",
"is_registered",
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
"url",
"ip_address",
], ]
combined_df = concat_columns([df1, df2, df3])
assert sample_df.ww == combined_df.ww
# spark does not preserve index order in the same way
if _is_spark_dataframe(sample_df):
pd.testing.assert_index_equal(to_pandas(combined_df.index),
pd.Index([0, 1, 2, 3]))
else:
pd.testing.assert_frame_equal(to_pandas(sample_df),
to_pandas(combined_df))
def test_concat_cols_different_use_standard_tags(sample_df):
sample_df.ww.init(
use_standard_tags={
"age": False,
"full_name": False,
"id": True
},
logical_types={"full_name": "Categorical"},
)
assert sample_df.ww.semantic_tags["id"] == {"numeric"}
assert sample_df.ww.semantic_tags["full_name"] == set()
assert sample_df.ww.semantic_tags["age"] == set()
df1 = sample_df.ww[["id", "full_name", "email"]]
df2 = sample_df.ww[["phone_number", "age", "signup_date", "is_registered"]]
combined_df = concat_columns([df1, df2])
assert combined_df.ww.semantic_tags["id"] == {"numeric"}
assert combined_df.ww.semantic_tags["full_name"] == set()
assert combined_df.ww.semantic_tags["age"] == set()
assert isinstance(combined_df.ww.logical_types["full_name"], Categorical)
assert not combined_df.ww.use_standard_tags["age"]
assert not combined_df.ww.use_standard_tags["full_name"]
assert combined_df.ww.use_standard_tags["id"]
def test_concat_cols_with_duplicate_ww_indexes(sample_df):
df1 = sample_df[[
"id",
"signup_date",
"full_name",
"email",
"phone_number",
"age",
"is_registered",
]]
df1.ww.init(index="id", time_index="signup_date")
df2 = sample_df[[
"id",
"signup_date",
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
"url",
"ip_address",
]]
df2.ww.init(index="id", time_index="signup_date")
error = ("Cannot set the Woodwork index of multiple input objects. "
"Please remove the index columns from all but one table.")
with pytest.raises(IndexError, match=error):
concat_columns([df1, df2])
df2.ww.pop("id")
error = ("Cannot set the Woodwork time index of multiple input objects. "
"Please remove the time index columns from all but one table.")
with pytest.raises(IndexError, match=error):
concat_columns([df1, df2])
df2.ww.pop("signup_date")
# Because underlying index is set, this won't change concat operation
pd.testing.assert_index_equal(to_pandas(df1.index), to_pandas(df2.index))
combined_df = concat_columns([df1, df2])
assert combined_df.ww.index == "id"
assert combined_df.ww.time_index == "signup_date"
assert len(combined_df.columns) == len(sample_df.columns)
def test_concat_cols_mismatched_index_adds_single_nan(sample_df):
sample_df.ww.init()
df1 = sample_df.ww.loc[[0, 1, 2], ["id", "full_name"]]
df2 = sample_df.ww.loc[[1, 2, 3], ["signup_date", "email"]]
if isinstance(sample_df, pd.DataFrame):
# Only pandas shows the dtype change because Dask and Spark won't show until compute
error = "Error converting datatype for id from type float64 to type int64. Please confirm the underlying data is consistent with logical type Integer."
with pytest.raises(ww.exceptions.TypeConversionError, match=error):
concat_columns([df1, df2])
# If the dtype can handle nans, it won't change
sample_df.ww.init(logical_types={"id": "IntegerNullable"})
df1 = sample_df.ww.loc[[0, 1, 2], ["id", "full_name"]]
df2 = sample_df.ww.loc[[1, 2, 3], ["signup_date", "email"]]
combined_df = concat_columns([df1, df2])
assert len(combined_df) == 4
def test_concat_combine_metadatas(sample_df):
df1 = sample_df[["id", "full_name", "email"]]
df1.ww.init(
table_metadata={
"created_by": "user0",
"test_key": "test_val1"
},
column_metadata={"id": {
"interesting_values": [1, 2]
}},
)
df2 = sample_df[["phone_number", "age", "signup_date", "is_registered"]]
df2.ww.init(
table_metadata={
"table_type": "single",
"test_key": "test_val2"
},
column_metadata={"age": {
"interesting_values": [33]
}},
)
error = "Cannot resolve overlapping keys in table metadata: {'test_key'}"
with pytest.raises(ValueError, match=error):
concat_columns([df1, df2])
del df2.ww.metadata["test_key"]
combined_df = concat_columns([df1, df2])
assert combined_df.ww.metadata == {
"created_by": "user0",
"table_type": "single",
"test_key": "test_val1",
}
assert combined_df.ww.columns["id"].metadata == {
"interesting_values": [1, 2]
}
assert combined_df.ww.columns["age"].metadata == {
"interesting_values": [33]
}
def test_concat_cols_with_ww_indexes(sample_df):
df1 = sample_df[[
"id", "full_name", "email", "phone_number", "age", "is_registered"
]]
df1.ww.init(index="id")
df2 = sample_df[[
"signup_date",
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
]]
df2.ww.init(time_index="signup_date")
combined_df = concat_columns([df1, df2])
assert combined_df.ww.index == "id"
assert combined_df.ww.time_index == "signup_date"
def test_concat_cols_uninit_dfs(sample_df):
df1 = sample_df[[
"id",
"full_name",
"email",
"phone_number",
"age",
"signup_date",
"is_registered",
]]
df2 = sample_df[[
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
"url",
"ip_address",
]]
sample_df.ww.init()
combined_df = concat_columns([df1, df2])
assert df1.ww.schema is None
assert df2.ww.schema is None
assert combined_df.ww.schema is not None
# Though the input dataframes don't have Woodwork initalized,
# the concatenated DataFrame has Woodwork initialized for all the columns
assert isinstance(combined_df.ww.logical_types["id"], Integer)
assert combined_df.ww == sample_df.ww
df1.ww.init()
df2.ww.init()
pandas_combined_df = pd.concat(
[to_pandas(df1), to_pandas(df2)],
axis=1,
join="outer",
ignore_index=False)
assert to_pandas(combined_df).equals(pandas_combined_df)
def test_concat_cols_ww_dfs(sample_df):
sample_df.ww.init(
logical_types={"full_name": "Categorical"},
semantic_tags={"age": "test_tag"},
table_metadata={"created_by": "user0"},
)
df1 = sample_df.ww[[
"id",
"full_name",
"email",
"phone_number",
"age",
"signup_date",
"is_registered",
]]
df2 = sample_df.ww[[
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
"url",
"ip_address",
]]
df2.ww.metadata = None
combined_df = concat_columns([df1, df2])
assert combined_df.ww == sample_df.ww
assert isinstance(combined_df.ww.logical_types["full_name"], Categorical)
assert "test_tag" in combined_df.ww.semantic_tags["age"]
assert combined_df.ww.metadata == {"created_by": "user0"}
pandas_combined_df = pd.concat(
[to_pandas(df1), to_pandas(df2)],
axis=1,
join="outer",
ignore_index=False)
assert to_pandas(combined_df).equals(pandas_combined_df)
def test_concat_cols_with_series(sample_df):
expected_df = sample_df[[
"id", "full_name", "signup_date", "is_registered"
]]
df = expected_df[["id", "full_name"]]
s1 = expected_df["signup_date"]
expected_df.ww.init()
s2 = expected_df["is_registered"]
combined_df = concat_columns([df, s1, s2])
assert combined_df.ww == expected_df.ww
df.ww.init()
s1.ww.init()
s2.ww.init()
pandas_combined_df = pd.concat(
[to_pandas(df), to_pandas(s1),
to_pandas(s2)],
axis=1,
join="outer",
ignore_index=False,
)
assert to_pandas(combined_df).equals(pandas_combined_df)
def test_concat_cols_combo_dfs(sample_df):
df1 = sample_df[[
"id",
"full_name",
"email",
"phone_number",
"age",
"signup_date",
"is_registered",
]]
sample_df.ww.init()
df2 = sample_df.ww[[
"double",
"double_with_nan",
"integer",
"nullable_integer",
"boolean",
"categorical",
"datetime_with_NaT",
"url",
"ip_address",
]]
combined_df = concat_columns([df1, df2])
assert df1.ww.schema is None
assert combined_df.ww == sample_df.ww
df1.ww.init()
df2.ww.init()
pandas_combined_df = pd.concat(
[to_pandas(df1), to_pandas(df2)],
axis=1,
join="outer",
ignore_index=False)
assert to_pandas(combined_df).equals(pandas_combined_df)
def test_concat_empty_list():
error = "No objects to concatenate"
with pytest.raises(ValueError, match=error):
concat_columns([])